28786905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{91387}}^1$

素因数の和:91405

約数の個数: 24

約数和(自身を含む): 57026112

約数和(自身を除く): 28239207

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 91387, 274161, 456935, 639709, 822483, 1370805, 1919127, 3198545, 4112415, 5757381, 9595635, 28786905]

約数ペア:

[(1, 28786905), (3, 9595635), (5, 5757381), (7, 4112415), (9, 3198545), (15, 1919127), (21, 1370805), (35, 822483), (45, 639709), (63, 456935), (105, 274161), (315, 91387)]